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目的：针对目前电话随访失访率高、质量难以控制的现状，探索有效应对措施并为科研随访工作提供循证依据。方法对收治的1374名创伤患者就创伤后是否发生PTSD进行三次电话随访，时间分别为创伤暴露后两周、一个月、三个月，记录并统计随访结果。结果三次随访成功率分别为：85.95%,83.57%,82.93%.失访原因为：1、无人接听（51，26.42%）；2、无患者本人电话（33，17.10%）；3、号码错误（32，16.58%）；4、停机、暂停服务、空号（20，10.36%）5、病情过重（16，8.29%）；6、患者去世（11，5.70%）；7、拒绝（12，6.22%）；8、时间不合适（10，5.18%）；9、关机（8，4.15%）。结论应针对失访原因进行提前预防，才有可能提高随访质量。“,”ObjectIve To find out effective measure to improve the quality of follow up by cellphone and decline the fail rate and to provide evidence for research projects. Methods 1374 trauma patients in 15 research centres were followed up. In order to identify whether they suffer from PTSD, they were called three times in two weeks, one month and three month after their exposure. Results 85.95%,83.57%and 82.93%of patients were followed up successfully in three times respectively, the lost reasons are unanswered(51,26.42%),Patient’s number is unknown(33,17.10%), error number(32,16.58%),out of service, no existing(20,10.36%),worse health condition(16,8.29%), death(11, 5.70%),refusion(12,6.22%), unavailable time (10,5.18%) and power off(8,4.15%).Conclusion Effective measure should be taken to avoid lost.